Commercial ventilation, Cornwall
Commercial ventilation design and installation in Cornwall
Supply and extract with heat recovery for offices, shops, clinics and fit-outs, across Cornwall.
- From £8,250 + VAT per system
- Free survey

We design and install supply and extract ventilation for Cornwall offices, clinics, salons and shops.
Every job in Cornwall gets a written quote before it starts and a commissioning record when it finishes. We cover Camborne, Newquay, Penzance, Bodmin and Redruth and the villages around them.
Commercial ventilation in Cornwall at a glance
- Area
- Cornwall
- Towns listed
- 10, largest Redruth
- Postcode districts
- TR14, TR15, TR3, TR10, PL24 and PL25
- Price region
- South West
- Survey
- Free survey (UK mainland)
How we do it
Employers must make sure every enclosed workplace is ventilated by a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992. In practice, designers work to rates such as 10 litres a second per person for offices, taken from Approved Document F and CIBSE guidance, and adjust for meeting rooms, kitchens and toilets. Typical jobs are fit-outs and refurbishments: a new tenant needs ventilation to match a new layout, an old system cannot keep up with more staff, or a change of use needs a fresh design.
Heat recovery supply and extract
One or more units with ductwork to diffusers, sized for occupancy.
Toilet and kitchenette extract
Dedicated extract for welfare areas.
Demand control
CO2 or occupancy sensors that slow the system when rooms are empty.
Guide prices in Cornwall
| Work | Guide price |
|---|---|
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £8,250–£17,650 + VAT |
| Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor) | £55–£130 + VAT |
South West rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Old units that are noisy, inefficient or failing
- Stuffy meeting rooms and afternoon drowsiness
- More staff than the system was designed for
Rules in England
In England, ventilation is covered by Part F of the Building Regulations and its guidance, Approved Document F (2021 edition). Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.
How the job runs
- Site survey
- Design
- Install
- Commission
- Hand over
Towns we cover in Cornwall
Questions about commercial ventilation design and installation in Cornwall
Which rules apply to ventilation in Cornwall?
In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.
How much does commercial ventilation cost?
A small office or shop with a single heat recovery unit typically costs £7,950 to £16,950 excluding VAT. Larger fit-outs are often priced at around £55 to £125 per square metre of floor, depending on design and ceiling access.
How much fresh air does an office need?
A common design rate for offices is 10 litres a second per person, used in Approved Document F and CIBSE guidance, with more for meeting rooms and areas with higher occupancy.
Which towns in Cornwall do you cover?
All of Cornwall, including Camborne, Newquay, Penzance, Bodmin and Redruth. If your town is not listed, send the postcode and we will confirm.
Are prices different in Cornwall?
Our guide prices are adjusted by region. In Cornwall we use South West rates, so small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) is typically £8,250 to £17,650 + VAT per system.
Get in touch with your Cornwall postcode and floor area for a first guide price.
Other services in Cornwall
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